Change-making machine



Aug. 19, 1930. L, E, BAUE ET AL 1,773,348

' CHANGE MAKING MACHINE Filed Dec. 1, 1924 7 Shets-Sheet 1 7 Aug. 19, 1930.

L. E. DAUER ET AL .CHANGE MAKING MACHINE,

Filed Dec. 1 1924 7 Sheets-Sheet 2 Aug. 19, 1930. E, BAUER ET AL 1,773,348

CHANGE MAKING, MACHINE Filed Dec. 1924 7 Sheets-Sheet 3 Aug. 19, 1930. 1... EQDAUE-R ETAL 1,773,348

CHANGE MAKING MACHINE Filed Dec. 1, 1924 7 Sheets-Sheet 4 Aug. 19, 1930. L. E. DAUYER ET AL 1,773,348

CHANGE MAKING MACHINE Filed Dec. 1, 1924 7 Sheets-Sheet 5 "Aug-19, 1930. E. DAUERET L 1,

CHANGE MAKING MACHINE Filed Dec. 1. 1924 7' Sheets-Sheet 7 7 with the back wallofits casing removed.

F tion.

Patented Aug. 19, 1930 CHICAGO, ILLINOIS, A CORPORATION. OF

n'ssrenons; BY MESNE ASSIGNMENTS, o HEDMAN MANUFACTURING oo rANY', or

Lou s En'w N BAUER AND WILLIAM HERBERT N; sIrIPMAmoE: cIIIoAGo, ILIiINCiIS,

ILLINOIS i CHANGE-MAKING MAQI-IINE Application'filed December 1, 1924. Serial m.-753,os3.

The present invention relates to .the class of machines-used in making change and for other analogous purposes. I

Among other objects the invention is intended to provideapracticable and reliable change making machine, of light and compact construction, and one susceptible of eco nomical manufacture-and permitting advan-' tageous standardization practices in theiproduction. of such ;machines on a commercial scale. a 1 g I The invention will ,beclearly understood by reference to one illustrative machine containing an embodiment of the invention, which is shown in the annexed drawings.

in said drawings: I L I ,Fig. 1 is a vertical section of the illustrative machine taken on a line near one side wall of themaohineica'sing and showing the operating mechanism in side elevation.

Fig.2 is' a rear elevation of said machine Fig. 3 is a plan view of the lower mechanismof the machine, including the keyboard and the base plate on which-the mechanism shown is mounted. 7 4 t-is an enlargedplan view of a por-' tion ofthe mechanism shown inFig. 3.

Fig. 5 is a. plan view of an individual active unit, comprising a key lever, draw bar and-devices operated thereby.

Fig.6 is a side view of the subject-matter of Figs, showing the key lever innorma'l position. l s Fig.7? is a similar view showing the key lever in operating position, orin'other words showing the key lever depressed and its associated draw bar operating the device's associated therewith. V v Fig. 8 is a sectional elevation taken in front of the-set of transi'erse rocker shafts shown in Figs. 3 and 4 and showing the foremost of'said rocker shaftsin front elevation and a number of the draw bars in cross sec-. The key levers associated with these draw bars; are omitted from this. figure. I

' v Fig. 9 shows a rocker shaft in cross section and one of its arms in side elevation, this view be ng taken on the line 99 of Fig.10... v v

' Fig. 10 is a-longitudinalverticalsection of a part of said rocker shaftand said arm. a

Fig. 11 is'a perspective View of a rocker shaft arm by which the rocker shaftis actu-. ated by a draw bar... w i Fig. 12 is a side .view of a rocker shaft'arm by which the rocker shaft transmits motion to a comv ejecting device. w

- Fig. 13 isaplan view of an end portion of a sheet metal blank from which a rocker. shaftis made. y "Fig. llis a perspective view of a portion of thekeylever fulcrum bar. 7

Fig. .15 is a detailsection throughone of i v --the bell crank levers connecting a key lever.

to a. drawbar, and showing the manner of mounting said bell crank lever onits' ful-. crum shaft. v r' f Fig.16 is a detail view showing the manner of'mountinga bell crank leverwhich actuates a coin e] ector, this view being a cross section through, the fulcrumjshaft and an adj acent. spacing shaft and showing. a portion-of said bell crank lever in side elevation.

Fig. 17 is arear viewpartly in section of the subject-matter of Fig..16 Fig, 18 is a perspective viewr-ofa portion ofa comb which guides the'c-oin ejectors. 7

F ig. 19is a front elevation of. the. lower; portion of a coin magazine.

Fig.20 is a horizontal section and 'plan'of the said coin'magazine.

The illustrative machine is oe the type adaptedto contain a supply of coinsandhav-.

ing means cont-rolledfrom akey-board for discharging coins to supply-desired amounts of change; In this instance the machine is organized to throw out change in any desired arms 4 for engagement by shoulders 5 on the draw bars. By providing each rocker shaft with one or moresuch arm'sin the path of a shoulder or shoulders on one or more draw bars, and by providing different rocker shafts with such arms for engagement by pluralities of shoulders on individual draw bars, the rocker shaftsmay be operated singly or in groups by the various key levers. In other Words, certain individual key leverswill, operate certain in-dividual rocker shafts, while certain other key levers will operate selected p'luralities o'fsu'ch-rockershafts. Said rock= er shafts are operatively connected, in this instance by arms 6, connectingrods/land bell crank levers 8, with a gang ofde'vi'ces 9 associated with and adapted for removing or ejecting coins from a corresponding number of coinmagazines 10. Thus, by operation of a given lever, a coin or coins will be discharged fr'om aselected magazine or group of'magazines to supply the amount of change intended to be thrown by the particular key lever. v

This typeiof mechanism maybe used in a:

machine for subtracting sales amounts from amounts tendered by customers, or for delivering change-in'amounts designated by inclicia on the respective keys of thekey-board, or-for other analogous purposes. In the illustrative machinesaid mechanism is organized for delivering amounts designated by the key indices. For-instance, operation of the fifteen-cent key lever will effect discharge ofcoins to the amount'of fifteen cents.

The number of action units andselectively;

operable devicesiof such a mechanism, and the number ZLIICldlSPOSltlOD of rocker shaft arms 4 and coactmg drawbar shoulders 5 or their equivalents, by which the selective ac-p ti on of the machine isdetermined, wlll depend: upon the particular purpose and organization.

of the machine. Not only will individual action units and selectivelyoperable devices.

of a particular machinedifl er from one 'another withrespect to the number and arrange.

ment of coacting. elements involved in the selective action of'the. units, but also the or-. ganization. will be. affected :by such conditions as the number of coin magazines, the denominations of-coins therein, and the-number of keys, amounts to be thrown thereby, and the denominations of coins intended to supply such amounts. For example, a different organization would be required for supplying certain amounts of change fron'r two magazines for nickels and one magazine for dimes, from that required to supply the like amounts from two magazines for dimes and one magazine for nickels. Again,

to throw any given amount in'large coins.

or adjusted to suit the requirements of any particular organization; and one by which successive machines, either of identical organization or of varying organizations, may be manufactured expeditiously and economically by the use of standardized:parts. It is furthermore desired to provide a construction permitting compactassembly of the elements, includingclose crowding ofthe rocker shaft arms land-draw bar shoulders'5 without interference. These and other results, including lightness of construction without sacrifice of durability and efficiency, are accomplishedby a method of manufacture and features of construction such as for example hereinafter set forth.

The draw bars 2, shown arrangedina compact row above the-equallycompact bank of key levers 1, consistof she'et'meta-l strips disposed 'invertical planes and having their upper edges formed with short lugs or projections to provide the aforesaid shoulders 5. These lugs or shoulders 5 are arranged at uniform intervals corresponding to the spacing ofthe axes of the rocker shafts, but project alternately at opposite sides of the draw bars, so that the lugs or shoulders '5 on either side of'a draw barare disposed at intervals which are twice the distance-between adjacent-rocker shaft axes. Thus all of the draw bars may be identical, andT-they may be cheap- 1y manufactured in quantities as thin sheet metal stampings.

The rocker shafts 3, all of which are likewise identical, are made as sheet metal stamp ings of channel form or U-shaped'cross section. Atuniform intervals, corresponding to the spacing of the draw bars, said rocker shafts-are provided with rocker arm seats represented by notches 11 in opposite edges of the ch annel-shaped shafts and openings 12 in the bottom thereof; said openings 12, shown as-slots, being in alignment with the notches 11. The rocker shaft arms 4, consisting of duplicate sheet metal pieces, are shaped at their lower ends to fit in the channel-shaped r'ocker shafts in engagement with the slots or openings 12 thereof, and are formed with shoulders 13 for engaging said notches 11. Said arms may be conveniently attached to the rocker shafts by swaging their lower extremities against the under sides of the rocker shafts, as indicated at 14 in Figs. 8, 9 and 10. The other rocker shaft arms 6, likewise consisting of identical sheet metal pieces, have their lower ends similarly formed, as shown in Fig. 12, and are similarly mount ed upon and secure'd'to the rocker shafts as shown i'nFigs. 2 and 8.

The terminal rocker arm seats of each rocker shafta re spaced unequally from the respective ends of the shaft, the difference in such spacingbeing substantially equal to one half ofthe distance between adjacent rocker arm seats or an odd multiple thereof. Inthe assembled mechanism, the rocker shafts are ar-' ranged with theirends in'alignment, but with alternatejro 'cker shafts turned roundabout Orend for end, or'in other words so that alternate shafts will have their terminal rocker arm seats, unequally spaced from the corresponding endsof'said shafts. Thus, although all of the rocker shafts are identical in length and construction, the rocker arm seats of each shaft will be staggered in relation to the rocker arm seats of adjacent shafts, as clearly appears in Fig; 4. Consequently, rocker arms affixed'on a group ofseats of one shaft will orin other words a set of rocker arms on one rocker shaft may moveebetween slmilar sets of rocker arms on adj acent rocker shafts. Thus the mechanism may be exceedingly com pactly arranged, with the appropriate number and disposition of rocker arms required for a particular organization, the action of which be determined by merely providing each rocker shaft with the requisite number of arms so seated as to dispose such arms, in the completed assembly, for actuation by such of the draw'bars as are intended to operate that particular rocker shaft. 1

lln'some instances, the location of a long rocker shaft arm 6 may be such as to permit or render it desirable to utilize such an arm for the function of a short arm 4. In that event, such an arm 6 is merely the functional equivalent of an arm 4, with theadditional function of serving for communicatingmotion from the rocker shaft to a connecting rod 7-. It may also be necessary or desirable in some few instances to, bend-up or clip 05 one or more of the n unerous-draw barlugs 5 in order to accommo date a long rocker shaft 1 arm 6 without actuation'fthereof by a draw I bar. In Fig.4, for 1nstance,-two of-the draw bars are shown having a lug removed to avoid.

interference withtwo of the arms The remaining arms 6 in the illustrative machine are so'situated as not to require this expedient. e

I A simple and economical construction for journalling the rocker shafts, and permitting them to be assembled conveniently, is shown in Figs. 4, 8 1O and13. According to this construction, the channel-shaped shafts have square set end-walls 15 formedby struck-up end projections of the sheet metal blanks for the shaft stampingslFig. 18). In said end walls are bearing openings 16v which receive stance said bearing studs 17 are provided by the reduced terminals of shouldered and headed stud-members 19 fitted in openings in said supporting plates 18 and secured in place by cover plates 20 engaging the heads of the stud members; said cover "plates 20 being affixed to the supporting plates 18 by screws. 21. Thus the rocker shafts may be easily assembled and mountedby arranging them between the supporting plates 18, inserting the bearing studs insaid plates and into the openings inthe ends of therocker shafts, and securing all the studs at either side of the assembly by the cover plates 20; avoiding the necessity ofconstructing special bearings or employing screw-threaded bearing sup-- ports or the like. V

Said supporting plates 18,-together with a pair of supportingstandards 22fora shaft 23 (Fig. 1) support, so much of 'them'echanism as'comprisesthe key levers 1, draw bars 2 and rocker, shafts8, the latter being'shown arranged in the spacebetween the draw bars and'key' levers These supporting members,

metal parts; and said supporting members maybe conveniently secured in place by fa tening them to bars 24 secured on the machine base plate 25. e

Each of'the sheet metal supporting plates 18 may have'a row of holes or bearing openingsto accommodate any appropriate number of rocker shafts, and these plates, being duplicates of each other, may be cut out from sheet metal in quantities for use in the manufacture 'of machines having either the same or various numbers ofrocker shafts, according to the number of coin magazines and ejectors, or according to other requirements, such for instance as the use of additional key levers and rocker shaftsfor effecting functions other than coin-ejection. i

and cover plates 20 may consist of flat sheet The key levers 1 are shown formed at their front ends with upstanding arms to support the keys, which are, desirably arranged in i steppec'lrows. The key levers for each row 'ofkeys maybe identical, and maybe manu-' factured economicallyin quantities by cute ting them from sheetmetal of appropriate th ckness to form stiff bar-like levers. The

rear ends of the key levers are cut out as construction provides a convenient fulcruming method, contributing to rapidity of assembly, and further provides a convenient and accurate mode of spacing of the key le vers and draw bars, the latter being operatively connected with the respective key levers. In other words the spacing of the ac tion units of the machine is established by a single slotted sheet metal part, which may be cut with uniformly spaced slots of suflicient number to pc unit use-of various numbers of key levers; 'Said fulcrum piece is shown having end flanges 30 by which it is attached to the sheet metal pla es 18 support- 7 ing the lower assembly of the mechanism of the machine.

Operative connections between the key levers and the respective draw bars may be provided, for example, by bell crank levers 31 pivotally connected to the front ends of the draw bars and having-hooked portions 32 engaging studs or pins 33 carried by arms on thekey levers (Figs. 2, 6 and. 7). These bell crank levers may consist of duplicate sheet metalpieces equipped with brass bushings 34 fitted'in the fulcrum openings of the bell crank levers and secured thereto by swa ing the bushings externally against the side. of the bell crank levers (Fig. 15). These bushings 34 are of uniform lengths appropriate for spacing the bell crank levers and providing adequate bearings therefor on the fulcrum shaft 23. Said shaft 23 is suitably mounted in the standards 22 between which the series of bell crank levers are arranged (Fig. 3).

The draw bars are shown pivotally connected. at their rear ends to spring actuated levers 35, which retract the draw bars and their associated key levers to their normal positions. Said levers 35 are fulcrumed on a stationary shaft or rod 36 connecting the plates 18. Like the bell crank levers 31, they may consist of flat sheet metal pieces having bushings 37 secured therein to provide their hearings on the fulcrum shaft 36 and for spacing said lovers, the entire collection of which is maintained in position by collars 38 aflixed on said fulcrum shaft 36 adjacent the terminal levers of the series. The springs for actuating said levers 35, or in other words the retracting springs for the draw bars, are shown as retractile coil springs 39 attached their rear ends to the lower arms of said levers 35 and attached at their front ends to a rod 40 supported between and connecting the plates 18. The plates 18 may be connected by one or more additional rods 41.

It will be observed that the key levers, draw bars and rocker shafts, with the key lever and draw bar connections, comprise a practically self-contained. mechanism, which may be conveniently assembled exteriorly'of the machine and then mounted'therein by aliiX- ing the sheet metalsidjesupports 18 and 22.

to the bars 24; on'the base plate.

In assembling such mechanism, the rocker shaf-ts3 arranged withthe rocker shaft seats,

machine, and with the arms 6, one on each rocker shaft, forconnection withthe respective coin-ejector actuating bellcranks 8, may be mounted in the supporting plates 18, together with the shafts23, 40 and; 4'1 by which said plates are connected. Thedraw barsa2, with-their front and rear levers 31 and 35 connected thereto,.may be assembled. on the fulcrum shaft 36: before said shaft is connected between-said plates and the ,key levers may be assembledqin engagement with the proper-slots ofthe fulcrum piece 27,, the latter being secured between said plates. The draw bars, being held up from the rocker shafts, may then be adjusted laterally to bring them in proper relation to the rocker shafts, whereupon said draw bars may be lowered into place-and the bellcrank levers 31 at the front ends of said draw bars may be hooked to the respectivekeylevers. The fulcrum shaft 23 may then be inserted through said bell crank levers 31 and connected't'o its supporting, standards 22. The collars '38 on the fulcrum-shaft 36 m ay then be adjusted and secured to hold the series of draw'bars in place; whereuponthe assembled mechanism maybe mounted on the base plate of the machine.

Theupper mechanism of the machine, comprising the coin eject0rs 9 and bell crank lovers 8, may also be separately assembled and mounted, after which the long arms (Son the rocker shafts 3 may be connected with the respective bell crank levers 8 by the rods 7 Said mechanism is mounted in a pair of sheet metal cheek plates 42 supported adjacent the sheet metal side walls 43 of the machine casing by pins 44 projecting from said walls through holes in the cheek plates (Figs. 1 and 2). The cheek plates 42 are connected by a stationary fulcrum shaft 45 for the bell crank levers 8, and by a spacer rod 46, stop rods 47 and 48, rear rod 49 and front bars 50.

The bell crank levers 8 are fulcrumed on the shaft 45, while the coin ejeetors 9 are fioatingly supported by their pivotal connections 51- with the front arms of the bell crank levers and by springs 52 yieldingly upholding said ejectors; the said springs 52, shown as coiled retractile springs of light wire, being attached at their front ends to hooks 53 provided on theejectors and being attached at their rear ends to the rod 49. The front arms of the bell crank levers 8 work between the rods47 and 48, which pro vide front and back stops for limiting the motion of said bell crank levers. The front stop rod 47 is shown disposed obliquely to simple expedient ofap propriately inclining the front stop shaft 47, the desirable variaallow difi'erent ranges of thr'owrot the difierent ejectors, so as tocgive each ejectoraproper travel forejecting the size ot-coin in the magazine with which such ejector is associated; the magazinesfor larger coins such as half dollars and quarters being in'asso-.

- ciation with the ejectors having the longer throws, and themagazines for the smaller 7 coins such as dimes being associated with the e ect-ors having the shorter throws. By the tion in throws ofthe different ejectors may be accomplishedwithout requiring any variation in the'lengths of the bell crank lever arms or the arms 6on the rocker shaft :3.

V Thusthe bell-crank levers8, as also the sheet metal.

arms 6 and the coin ejectorsf9, may consist of duplicate flat parts which may bemanufactured in quantities by cutting them from To provide adequate bearings for the sheet metal bell crank levers .8, brass bushings 54 may be fitted in the fulcrum openings thereof and swaged against the sides of said bell crank levers; and the gang of said bell crank levers, which in the illustrative machine are considerably less in number than 'justment'of the lengthsof saidconnecting the key levers and draw bars,may" be appropriatelyespaced on their fulcrum shaftv 45 by the simple expedient of forming said bell crank levers with curved edges concentric with the bushings'54. and engaging said edges'in notches 56 in the under side of the adjacent spacerrod 46 (Figs. 1, 2, 16 and 17).

I Said rod 46 may be manufactured in desired lengths with uniformly spaced notches 56,

which may be sawed or cut in the rod.

. As a further advantageous manufacturing expedient, the rods? by which the arms 6 on the rockershaftsfi are connected with the bell crank levers 8. may consist of pieces of stiff wire or thelike out to appropriate lengths and having their ends bent to engage holes in the rocker shaft arms 6 and the rear arms of the'bell crank levers 8. Proper adrods 7 may be made easily and speedily by appropriately bending their extremities as reouired, I

The coin magazines 10 of the illustrative machine are constructed on and rigidly connected by aback plate 57. providing a unitary I coin tray wh ch is removably mounted inlthe operating mechanism by set-ting it over the holderaplate 58-and engaging the knobs -59 inthesupporting slots or pockets therefor.

The coin magazines may be of any appropriate con'structiontorholding stacks of coins and permitting successive ejections of V the coins. They are shownas substantially tubular coin stack holders; open. at the front I for displaying the coins, and constructedat their. low'eryen'ds to provide coin-discharge slots60- (Fig. 19). In this instance, said' coin-discharging slots 60 are flanked by foot extensions 61 of the magazine side walls, and are definedby the' vertical spacing of the magazine bottoms 62 from the lower edges of inwardly'curving extensions 63 of the front and 20).: 1 v

To permitejection of coins from the magazines: by the narrow sheet metal ejectors 9, the magazine bottoms are bisected by slots 64 to'accommodate said ejectors. These slots 64 extend through the lower ends of the-back walls of 'the'magazines, providing notches 65 (Fig. :19) which determine the elevationsat which the ejectors may operate; said notches 65 beingno higher than the width of the coin or coins to be ejected from the respective magazines. Theiront edges of the magazine bottoms are cutaway as shown in Fig. 20 so retaining walls otthe magazines (Figs. 19

that thecoins being ejected need not be pushed any further than 'necessarybefore falling into the delivery chute 66 (Fig. 1-).

;As shown in" Fig. "1, the coin eject'ors 9 stand in'registrati on with the passagesthere- "for provided by the slots 64and notches 65 in the lower ends of the coin magazines, and I said 'ejectors'are guided in vertical slots in acomb 68 (Figs. 1 and 18) consisting of a thin sheet metal stripattached to theback holding plate 58 for the coin tray. The front ends ofthe ejectors protrude through said guiding'means into the notches 65, being yieldingly upheld therein by the springs 52.

Thusthe ejectors stand always in position tobe pushed through the ejectorslots 64,

whether'the tray is in place or otherwise;

so that reinoval of the cointray does not involve the -slightestdisturbance of relationship ,and replacement of the coin tray after removal brings the ejector slots 64 and notches 65 into registration'with the-ejectorst "It will be understood-that when an ejector is thrust forward by operation of one of the "bell crank levers Sconneeted therewith, the front end of the ejector engages the rear edge of thebottom-most'coin in the ,corres ondin magazine and ushes the :coin' through thedischarge slot 60 into the delivery chute Theswinging ofthe bell crank lever'8 imparts an arcuate movement'to the rear end of the ejector, tending'to depress itsfrontend, which however is yieldingly upheld bythesprin'g 52. Thus the front end i of the ejector has an advantageous forward and-downward movement, adapting it, to ride- .easily under the coins superposedupon .the

zonebeing ejected. Thefront endof the ejectiveengagement with the rear edge ofthe coin- .tor is desirably inclined rearwardly and downwardly asshown for maintaining efli'ec- *until it is discharged.

"-Ordinarilya singlecoin may bedischarged at-a time fromeachmagazine, but any magamaterial.

to-a specificimachine organization whereby desired amounts/of change 'underonedollar zine -may be arranged to discharge two ;or more coinsat ai-timeby forming the discharge sl'ot'60 thereof of appropriate dimension to permit such discharge and by forming its notch andtlie coiresponglin g guide slot 67 in'the comb-68 of suflicientheight tozpermit the ejector to engage the rearcdges of the two or more coins-to be-eiected.

Referring to Fig. 1, the ejectedcoins fall upon and slide :down the inclined bottom member-69 ofthe discharge-chute 66, and are discharged-through an opening (not shown) in one-of the side-walls of the-machine casing. Sa id'bottom'member-69'is shown as a channel-shaped sheet metal strip secured to lugs-7'0. on a sheet metal' wall 71 which int-urn is :secured to lugs .72 attaehed' to the'sheet -metal sides 43 of the machine casing. To

other similar lugs -73 are attached the sheet metal :front wall 74, and a sheet metal 'com- I binedtop and back-wallu75.

The sheet metal front wall 7 l-is utilized as thef'ront:of-thedischarge chute 66. To dead en-th'e :sound of coins striking against said wall, .as the coins are being :rapidly ejected, saidfront w-all'is provided-on its inner side with a pad 76 of leather or other suitable Reference will now'be anade, for. example,

may beidischarged in coins of convenient-denominations 'from 'a comparatively small number of coin anagazines and-by the use of a simple-and convenient key board.

As" shown :in Fig. :2, the illustrative machine Qlias eight coinwmagazines. The three larger magazinesaappearing' at the left hand side in Fig; Qare adapted to icontain half-dollars, 7 quarters and nickels respectively.

T'he'two smaller magazines at the-opposite side "are adapted to contain dimes. Thefthree intermediate :magazines are adapted to contain cents.- Qf'thesethreemagazinesfiwo of them are eachadapted for discharging two cents .a't a time. They may bereferredzto as twocent magazines. Alltheother-magazines are adapted r01 dischargingonly' one coinat'a time;

The :ejectors ifor :the half-dollar, quarter "and nickel 'm-agazines are e'opera'ted respecwtively from the first-three of -th e' gang -of rocker shaftsIB. -The-eject0rs for the-two twocent. magazines and "the one zone-cent magazine are. operated fnom the next three rocker shafts ;-:::md I the ejectors: :for the two dime magazines are operated-from the last two rockerv shafts. *The rocker shafts may be conveniently referred to as half-dollar, quarter, nickel, two-cent, one-cent and dime shafts, according to the magazines and ejectors with which they areassociated.

The key-board (Fig. comprises four keys for throwingodd cents, and other keys 'for throwing five cents andmultiples thereof up to one dollar. The keys bear indicia signifying the amounts to be thrown; the four cent keys bearing thenumerals 1, 2, 3,

by either the three-cent or four-cent key levers. Accordingly, the one-cent key lever will throwbne cent from the one-cent magazzine; the :two-ce ntkey lever will throw two cents from one of the two-cent magazines "the three-cent key-*lever'will throw two cents from the other two cent magazine and one cent :from the one-cent magazine; and the four-cent key leverwill throw two centsfrom each'ofthe-twotwo-cent magazines, or four cents in all. Thus .oneytwo, three or four cents may be't-h-rown' by a'ctuationof a single key lever, the amount being obtained from one :or more oft-he magazines for cents:

. Itwill be unnecessary :to explainindctail the numberandarrangement ofrocker shaft 1.

arms 'enthe hal f-dollaryquarter and nickel shafts and the two dimeshafts. Sufiice'it to say, for example, that the nickel shaft may be operated by the five-'cent' key lever and-by other=key'levers for instance the-fifteen-cent key lever; and thus one'or both .dimeshafts "may beop eratedby variouskey levers which also %operate the-nickel, quarter and half-dollar shafts. Thus the five-cent key lever-will throw a nickel; the ten-cent key lever will throw 'a-dime the fifteen cent keylever will throwa dime-and arnickel; the twenty-cent key leverwill throwtwo dimes; the-.twentyfive cent :key lever will throw a quarter; the

thirty-cent lcey lever will throw a quarter and a. nickel; and so onamou-nts which are successive :multiples of live cents may be thrown ;"anamount between twentyefive cents and fifty-cents being made up in part by a qurater; an'amounit between fifty cents and seventy-five cents being made up inpart' by -.a half-dollar; and an .amount between seventy-fivecents and one dollar-being made up in part by a half-dollar 4 and quarter.

Odd cents in any amount over a multiple are of five may be thrown by operating the ap- I propriate cent key lever in addition to the key lever for throwing five cents or a multiple thereof. For instance, to obtain six cents, strike the five-cent and one-cent key levers. To obtain eighteen cents, strike the fteen-cent and three-cent key levers. As the one-cent rocker shaft and the two two-cent rocker shafts are operated only by the key levers for throwin cents it is obvious that 3 any one of the four key levers for throwing cents may be operated simultaneously with any of the other key levers.

The key-board is shown having two twenty-five cent keys and two fifty-cent keys.

' One of the twenty-five cent keys will throw a distinctive color, preferably white. The duplicate twenty-five cent and fifty-cent keys for throwing their amounts in small change instead of in single coins, and also the .dollar key, which throws a halfxlollar, quarter, two dimes and a nickel, are of anotherdis tinctive color, for instance bright red, and are desirably arranged as shown. This provides a simple and convenient key-board ar- 7 rangement, having the four rows of. common keys commencingrespectively with the five, twenty-five, fifty and seventy-five-cent keys; having the key-board conveniently divided by the intersecting row of distinctively colored cent keys, and the latter conveniently disposed for striking with the other keys; and the extra keys being also conveniently disposed and the key-board as a whole well balanced.

From the foregoing description it will bev seen that the mechanism disclosed is of simple, compact and light construction, and of practicable and reliablecharacter; that the operative elements consist principally of fiat sheet metal elements, the only operating elements other than fiat being the rocker shafts and draw bars, which are made from sheet metal ,blanksby very'simple upsetting operations; that all likefunctioning elements are identical, permitting desirable standardization of parts for manufacturing such machines, and allowing the construction of machines more or less varying in organization from standard parts; and that themechanism otherwise embodies a number of advantageous manufacturing expedients, and may I be conveniently and expeditiously assembled.

nationss a q .Having described one embodiment of our Obviously the present invention is not restricted to the precise construction of the illustrative machine, since the details of form, construction and arrangement may be varied to meet different requirements. Moreover of the illustrative machine be used conj ointly, since theymay be used to advantage in various different combinations and sub-combiinvention, we claim; 1 I

l. A- machine of the class described comprising, in combination, uniform draw bars having uniformly spaced and staggered shoulders; rocker shafts disposed transversely. of said draw bars at intervals corresponding to'the spacing of said shoulders; saidrockershafts' having uniformly spaced 3 rocker arm seats, and arranged with'the seats of alternate shafts staggered in relation to the seats of theothe'r alternate shafts; the said draw bars being arranged at intervals correspondingto the spacing of said seats;

and arms affixed toselected seats to provide for a desired selective operation of saidshafts by said draw bars. Y

. l '2. A machineof the class described comprising, in combination, uniformly spaced draw bars comprisingsheet metal strips havingunifornily 'spaced'shoulders bent alternately atop'posit e'sides thereof; rocker shafts arrangedtransversely of said draw'bars and spaced at intervals corresponding to the spacing of said shoul'ders';*said rocker shafts consisting of channelfshaped sheet metal stampings having" uniformly spaced seats,

andfarrangedwith the seats of alternating shafts staggered in relation to those of the other shafts; and arms aflixed to selected seats.

8. A machine of the class described comprising, in combination, a gang of uniform rocker shafts having uniformly spaced seats, the terminal seats of each shaft being unequally spaced from the respective ends of the shaft; and said shafts arranged side by side with their-ends transversely aligned but with alternate shafts turned end for end, so

that the seats of alternate shafts will be in staggered relation to those of the other shafts; arms aflixed to selected seats; and a set of draw bars havingdevices for engaging said arms.

4. In a machineof the class described, sheet metal rocker "shafts having end walls provided with bearing holes; supports between which the rocker shafts are mounted;

headed bearing studs inserted through openings in said supports and into said holes in the ends of the rocker shafts ;-and holding plates affixed to said supports over the heads of said studs to prevent their removal.

5. The combination with the key levers and draw bars, of the levers 35 connected'to llU it is not-indispensable that allof the features the rear ends of the draw bars, a shaft on which said levers are fulcrumed, said levers consisting of'fiatsheet metal pieces having bushings fitted, in and swaged thereto, the said bushings extending beyond the side edges of said levers35 and mounted in abutting relation on said shaft whereby the levers will.

be properly spaced apart; andcollars afiixed on said shaft adjacent the bushings of the terminal levers of the series for maintaining them in place.

6. In a machine of the class described, a plurality of identically formed sheet metal draw bars, each of said draw bars having similarly formed and spaced rocker arm engaging members bent alternately in opposite directions, a plurality of identically formed-sheet metal rocker shafts each havingspaced slots for the reception of rocker arms, the terminal slots in each shaft being unequally spaced from the respective ends of the shaft whereby, by reversal of alternate bars in assembling, the slots in any rocker shaft- Will assume a staggered relation with those in'ad-iacent rocker shafts, each of said rocker shafts having an end provided with a hole for the reception of a pintle, spaced plates for said rocker shafts having holes therein for registration With those in said shafts, headed pintles mounted in said aligned holes, and plates overlying the heads of said pintles along each side of the assembly for preventing accidental removal of the pintles.

In testimony whereof, we have signed our names to this specification.

LOU-IS E. DAUER. WILLIAM HERBERT N. SHIPMAN. 

